Home / 72,514.36-100,070.76-54,332.80

Finding the Fourth Proportional to 72,514.36, 100,070.76 and 54,332.80

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Solution

The fourth proportional to 72,514.36, 100,070.76 and 54,332.80 is: 74,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,514.36 : 100,070.76 = 54,332.80 : x
  2. Step 2: Convert to fraction form
    72,514.36/100,070.76 = 54,332.80/x
  3. Step 3: Cross multiply
    72,514.36x = 100,070.76 × 54,332.80
  4. Step 4: Simplify right side
    72,514.36x = 5,437,124,588.93
  5. Step 5: Solve for x
    x = 5,437,124,588.93/72,514.36
  6. Step 6: Final answer
    x = 74,979.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.